זוהר שמות — דף צט ע”ב

The Zohar describes the Torah as a young woman who reveals her face to her beloved: first she signals him from behind a window, then speaks to him in riddles, then finally reveals herself face to face and tells him all her hidden secrets from the earliest days. This is how a person becomes a true master of Torah, master of the house, for she has unveiled everything to him. The Torah then asks him: did you see the hint that I gave you at the beginning? Such and such were the secrets, thus and so it is.